81959920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7703}}^1$

素因数の和:7742

約数の個数: 80

約数和(自身を含む): 229271040

約数和(自身を除く): 147311120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 7703, 10640, 15406, 30812, 38515, 53921, 61624, 77030, 107842, 123248, 146357, 154060, 215684, 269605, 292714, 308120, 431368, 539210, 585428, 616240, 731785, 862736, 1024499, 1078420, 1170856, 1463570, 2048998, 2156840, 2341712, 2927140, 4097996, 4313680, 5122495, 5854280, 8195992, 10244990, 11708560, 16391984, 20489980, 40979960, 81959920]

約数ペア:

[(1, 81959920), (2, 40979960), (4, 20489980), (5, 16391984), (7, 11708560), (8, 10244990), (10, 8195992), (14, 5854280), (16, 5122495), (19, 4313680), (20, 4097996), (28, 2927140), (35, 2341712), (38, 2156840), (40, 2048998), (56, 1463570), (70, 1170856), (76, 1078420), (80, 1024499), (95, 862736), (112, 731785), (133, 616240), (140, 585428), (152, 539210), (190, 431368), (266, 308120), (280, 292714), (304, 269605), (380, 215684), (532, 154060), (560, 146357), (665, 123248), (760, 107842), (1064, 77030), (1330, 61624), (1520, 53921), (2128, 38515), (2660, 30812), (5320, 15406), (7703, 10640)]